I don't know what you're trying to accomplish, but the index (or the SS for that matter) is just a pointer into the table (the clump of data). You can define an identical table in the WS of the sub pgm and move the passed data (the clump) into it. Then do your thing.
Better yet, use a SS to access it and you won't even have to move it.
Maybe you should explain what you want to accomplish by passing the table. If you just want to search it, just do what I suggested above.